My parents being attracted by Ahmadiyyah Faith

Peace Psyah,
actually i was waiting for some sort of time frame or some event that may or might have marked the coming of Hazrat Isa.

According to various scholars the signs of Dajjals are every where to be seen. Most prominently Dr. Israr

So going by ur analogy the Imam Mahdi must have passed by, no ?

If not then what r the signs to recognize the Dajjal/Anti christ ?

Is there any time frame given in the Holy Qur'an and Ahadeeth for the period of " Imam Mahdi -> Dajjal -> Hazrat Isa AS" ?

If anyone out there could help in this regard please do so. Jazak'Allah